US 4,281,483 AGranted

Method of curving supporting surfaces of driving belt elements

AssigneeVolvo Car Corporation

InventorsAlexandre Horowitz, Rudolf J. G. A. van der Hoorn, Jozef W. M. Kummeling

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Abstract

A method of providing transverse elements to be arranged in a consecutive series side by side on a driving belt with curved surfaces by which they support the driving belt. The surfaces obtain a curvature by replacing the driving belt by an endless grinding band having grinding material on its inner side engaging the said surfaces and running the whole on two pulleys, one of which has a smaller diameter than the other one. The grinding band has longitudinal zones with different abrasing capacities, for example by providing the band with a longitudinal range of gaps in its middle zone. In this way the supporting surfaces obtain simultaneously a curvature in the running direction of the belt and in a direction opposite thereto.

Claims10

Dependent claims

A method of making curved supporting surfaces on a consecutive range of transverse elements to be arranged on a driving belt, comprising the steps of curving by one operation both in the running direction of the belt and in a direction at right angles thereto;

said curvings are made simultaneously on a ring of transverse elements arranged side by side as a circular row, guiding a grinding band across the joint supporting surfaces on the transverse elements to be curved, forming the radius of curvature of the curve in the running direction of the belt defined by the diameter of the circular row of elements, producing the curving at right angles thereto simultaneously for providing the grinding band with a higher material-removing capacity on the outer sides than in the middle portion and producing continuous curving which is the same for all plates.

Dependencies are inferred from the claim text.